My research interests lie at the intersection of international environmental politics, security, and negotiation. In particular, I have published in the area of conflict and cooperation over transboundary freshwater---otherwise known as the field of "hydro-politics". More broadly, my work challenges popular notions that contend that resource scarcity and environmental degradation are the main impetus for conflict and "resource wars" among states, by likewise demonstrating their motivation behind international cooperation. In addition, I am also working on the linkages between climatic change and international water issues, primarily as such a relationship pertains to the resiliency of institutions and regimes that govern environmental resources in the face of environmental variability. Among my publications I have authored a monograph International Water Treaties: Negotiation and Cooperation along Transboundary Rivers (Routledge 2008), co-authored a textbook Bridges Over Water: Understanding Transboundary Water Conflict, Negotiation and Cooperation (World Scientific 2007 and 2013), and edited Beyond Resource Wars: Scarcity, Environmental Degradation, and International Cooperation (MIT Press 2011). My articles have appeared in such outlets as Global Environmental Politics, International Negotiation, Ecological Economics, Political Geography, International Studies Quarterly, Eurasian Geography and Economics, and the Journal of Peace Research.
Besides my work in environment and security, I am also interested in other areas of global and human security as well as globalization and foreign policy. On these other themes I am working on projects related to political demography, media and technological diffusion, migration, and transnational crime.